Ex-Nomads boss awaits bail decision

Former bikie boss Hassan "Sam" Ibrahim will spend a nervous night waiting to hear whether bail granted over firearms charges will be revoked.

The former Nomads boss and older brother of Kings Cross nightclub owner John Ibrahim was granted conditional bail on June 16 at Parramatta Local Court.

Ibrahim, from Greystanes in Sydney's west, is facing five charges including supplying firearms to unauthorised persons and possession of a prescribed, restricted substance.

He is also appealing charges of intimidating a police officer in execution of duty and two counts of making death threats.

At an appeal on Thursday, the Crown asked bail be revoked due to the "nature and seriousness" of its case and Ibrahim's "lengthy criminal history".

"The basis of the application is the unacceptable risk of commission of further serious offence and risk of safety of victims, individuals and the community," the Crown's lawyer told the NSW Supreme Court.

They were charged after police seized 18 weapons, including an M1 military-grade assault rifle, a standard rifle, three pistols, two shotguns and 11 handguns in dawn raids on six properties in Sydney and the Illawarra.

Hundreds of bullets, steroids and illicit drugs were also found.

The charges followed a lengthy police operation in which an undercover detective infiltrated the alleged syndicate and purchased 13 weapons.

Police said at the time the trio were "significant players" in an illegal syndicate, selling military-grade weapons across western Sydney and the Illawarra region.

Shortly after Justice Peter Hidden announced he would hand down his judgment on Friday morning, two tattooed men drove Ibrahim away from court in a white Land Rover.